CVE-2019-18215
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL...
CVE-2019-18215 is a high vulnerability (CVSS 7.8) in Comodo Internet Security, published November 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. No source names a fixed version.
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.8
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.
- Record
CVE-2019-18215- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-427
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.
- Record
CVE-2019-18215- Updated
- 2026-11-02
EUVDEUVD-2019-8015 No score
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.
- Record
EUVD-2019-8015- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6ccg-r3f9-7j87 No score
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL...
An issue was discovered in signmgr.dll 6.5.0.819 in Comodo Internet Security through 12.0. A DLL Preloading vulnerability allows an attacker to implant an unsigned DLL named iLog.dll in a partially unprotected product directory. This DLL is then loaded into a high-privileged service before the binary signature validation logic is loaded, and might bypass some of the self-defense mechanisms.
- Record
GHSA-6ccg-r3f9-7j87- Weakness
- CWE-426
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD |
References
safebreach.com/blog
safebreach.com/Post/Comodo-Internet-Security-DLL-Preloading-and-Potential-Abuses-CVE-2019-18215
forums.comodo.com/news-announcements-feedback-cis/comodo-internet-security-2019-v12106914-released-t124993.0.html
nvd.nist.gov/vuln/detail/CVE-2019-18215
github.com/advisories/GHSA-6ccg-r3f9-7j87